In the final version of "Neoapp" you may do this more easily from the properties box?as is done in "Neobook"?

My question is transferred to other commands that are very easy to use "Neobook" as is "MessageBox" in "Neoapp" becomes complicated handling as it should call a subroutine to read the option chosen by the user

In the final version of "Neoapp" you may do this more easily from the properties box?as is done in "Neobook"?

Possibly. Unlike Windows apps there isn't a straightforward feature for assigning shortcut keys to buttons. HTML does have an accesskey attribute, but it's handled slightly differently by different browsers. It's also limited to specific key combinations. A description of accesskey below:

My question is transferred to other commands that are very easy to use "Neobook" as is "MessageBox" in "Neoapp" becomes complicated handling as it should call a subroutine to read the option chosen by the user